diff --git a/js/package.json b/js/package.json
index c6f76bc..d1a97c2 100644
--- a/js/package.json
+++ b/js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pmtiles",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "description": "PMTiles archive decoder for browsers",
   "main": "index",
   "module": "index.mjs",